R. Klinger, and C. Friedrich. Proceedings of Recent Advances in Natural Language Processing (RANLP), page 185-191. Borovets, Bulgaria, (September 2009)
C. Stach. Proceedings of the Thirteenth International Conference on Emerging Security Information, Systems and Technologies, page 41–46. Nice, IARIA, (October 2019)SECURWARE 2019 Best Paper Award.